Numerical Simulations of SCR DeNOx System for a 660MW coal-fired power station

Aimed at the selective catalytic reduction (SCR) DeNOx system of a 660 MW coal-fired power station, which is limited by low denitrification efficiency, large ammonia consumption and over-high ammonia escape rate, numerical simulations were conducted by employing STAR-CCM+ (CFD tool). The simulations...

Full description

Saved in:
Bibliographic Details
Published inE3S Web of Conferences Vol. 38; p. 4009
Main Authors Yongqiang, Deng, Zhongming, Mei, Yijun, Mao, Nianping, Liu, Guoming, Yin
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2018
Subjects
Ammonia
Catalysis
Coal-fired power plants
Computer simulation
Denitrification
Escape systems
Nozzles
Optimization
Power consumption
Power plants
Selective catalytic reduction
Simulation
Online AccessGet full text

Cover

More Information
Summary:Aimed at the selective catalytic reduction (SCR) DeNOx system of a 660 MW coal-fired power station, which is limited by low denitrification efficiency, large ammonia consumption and over-high ammonia escape rate, numerical simulations were conducted by employing STAR-CCM+ (CFD tool). The simulations results revealed the problems existed in the SCR DeNOx system. Aimed at limitations of the target SCR DeNOx system, factors affecting the denitrification performance of SCR, including the structural parameters and ammonia injected by the ammonia nozzles, were optimized. Under the optimized operational conditions, the denitrification efficiency of the SCR system was enhanced, while the ammonia escape rate was reduced below 3ppm. This study serves as references for optimization and modification of SCR systems.
ISSN:2267-1242
2555-0403
2267-1242
DOI:10.1051/e3sconf/20183804009